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【单选题】
下列哪一种材料不能用于机场道面上基层()A.
石灰砾石土
B.
石灰粉煤灰碎石土
C.
水泥稳定砂砾
D.
级配碎石
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反馈参考答案：
举一反三
【单选题】In a flame of pure hydrogen gas, burning in air, the hydrogen reacts with oxygen to form water and releases _______.
A.
little hydrogen
B.
little oxygen
C.
energy
D.
waste
【简答题】画图是运用正投影法把空间物体表达在平面图形上,即由______到_______。
【单选题】航班上配备的机上急救设备，描述错误的是_______？
A.
应急医疗药箱是针对专业医务人员配备，特殊情况下允许在机长同意后开启
B.
卫生防疫包是专门用来处理污物的
C.
常备药箱可以随意使用
D.
急救箱用于外伤救护，如止血、包扎等
【简答题】Xiao Min usually gets up at seven o ’ clock. He has breakfast at half past seven and then 1 to school. Classes 2 at eight o ’ clock in the morning and finish (结束) at three o'clock in the afternoon. 3 ...
【简答题】阅读短文,在空白处填入一个恰当的单词。 Joy is a school girl. She usually ___1____ up at seven o ’ clock on weekdays and she has breakfast at half past seven. After that, she goes to school on _______2_ because her home ...
【简答题】Consider three different processors P1, P2, and P3 executing the same instruction set. P1 has a 3 GHZ clock rate and a CPI of 1.5. P2 has a 2.5 GHZ clock rate and a CPI of 1.0. P3 has a 4.0 GHz clock ...
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